%PDF-
%PDF-
Mini Shell
Mini Shell
<?php
/**
* @author Félix Girault <felix.girault@gmail.com>
* @license FreeBSD License (http://opensource.org/licenses/BSD-2-Clause)
*/
namespace Essence;
/**
* Allows an object to cache method calls.
*
* @package Essence
*/
trait Cacheable {
/**
* Internal cache engine.
*
* @var Essence\Cache\Engine
*/
protected $_Cache = null;
/**
* Returns the cached result of a method call.
*
* @param string $method The method to cache.
* @param ... mixed Parameters to be passed to the method.
* @return mixed Cached result.
*/
protected function _cached( $method ) {
$signature = $method;
$args = [ ];
if ( func_num_args( ) > 1 ) {
$args = array_slice( func_get_args( ), 1 );
$signature .= json_encode( $args );
}
$key = $this->_cacheKey( $signature );
if ( $this->_Cache->has( $key )) {
return $this->_Cache->get( $key );
}
$result = call_user_func_array( [ $this, $method ], $args );
$this->_Cache->set( $key, $result );
return $result;
}
/**
* Generates a key from the given signature.
*
* @param string $signature Method signature.
* @return string Generated key.
*/
protected function _cacheKey( $signature ) {
return md5( $signature );
}
}
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